I bought the Icom ID-31 UHF only radio when it came out to venture into the world of D-Star. If you read my review of that radio (located here) you'll find that I thought the radio was well thought out and contained innovative features not seen in other HT's, but that it's UHF only capability forced it to be a radio with a very narrow audience. My suggestion to Icom was to do a similar...
Icom ID-51A Review: VHF/UHF D-Star Handi-Talkie with GPS
Icom ID-51A Review: VHF/UHF D-Star Handi-Talkie with GPS